Krivopusk M.E. (1965) Ammonia, glutamic acid, glutamine and gamma-aminobutyric acid in lumbar and brain ventricular fluid in patients with tumors of the central nervous system. Voprosy Meditsinskoi Khimii, 11(5), 59-63.

et al. Ammonia, glutamic acid, glutamine and gamma-aminobutyric acid in lumbar and brain ventricular fluid in patients with tumors of the central nervous system // Voprosy Meditsinskoi Khimii. - 1965. - V. 11. -N 5. - P. 59-63.

et al., "Ammonia, glutamic acid, glutamine and gamma-aminobutyric acid in lumbar and brain ventricular fluid in patients with tumors of the central nervous system." Voprosy Meditsinskoi Khimii 11.5 (1965): 59-63.

Krivopusk, M. E. (1965). Ammonia, glutamic acid, glutamine and gamma-aminobutyric acid in lumbar and brain ventricular fluid in patients with tumors of the central nervous system. Voprosy Meditsinskoi Khimii, 11(5), 59-63.